Symptoms
Virtual Servers configured with the fastHTTP profile will always have the iRule commands and HTTP::header exists and value return as not found, even if the header is present.
Impact
The iRules may not perform as expected when the HTTP header is already present, as HTTP::header exists and value will not find it.
Conditions
A virtual server configured with fastHTTP, and an iRule that makes use of either the HTTP::header exists or value commands.
